#3963df
a balanced, vivid blue · cool · closest name: royalblue
RGB
57, 99, 223
HSL
225°, 72%, 55%
CMYK
74, 56, 0, 13
Luminance
0.1512
Every format
| HEX | #3963df |
| RGB | rgb(57, 99, 223) |
| HSL | hsl(225, 72%, 55%) |
| CMYK | cmyk(74%, 56%, 0%, 13%) |
| LAB | lab(45.8 28.4 -67.5) |
| LCH | lch(45.8 73.2 292.8) |
| OKLCH | oklch(0.543 0.195 265.9) |
Copy-ready code
/* CSS */
color: #3963df;
background-color: #3963df;
/* Tailwind (arbitrary) */
class="text-[#3963df] bg-[#3963df]"
/* SCSS */
$brand: #3963df;
/* SwiftUI */
Color(red: 0.224, green: 0.388, blue: 0.875)
/* Android */
Color.parseColor("#3963df")Accessibility — WCAG contrast
Aa
#3963df on white: 5.22:1
AA ✓ pass · AA-large ✓ · AAA ✗
Aa
#3963df on black: 4.02:1
AA ✗ fail · AA-large ✓ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red22.4%
Green38.8%
Blue87.5%
CMYK percentages
Cyan74.4%
Magenta55.6%
Yellow0.0%
Key (black)12.5%
Color previews
#3963df text on a black background
contrast 4.02:1
Card sample
#3963df text on a white background
contrast 5.22:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #3963df;
Background color
Panel with #3963df background
background-color: #3963df;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #3963df;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(57, 99, 223, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(57, 99, 223, 0.45);
Border & gradient
Gradient panel
border: 3px solid #3963df; background: linear-gradient(135deg, #3963df, #7E39DF);